CVE-2026-6644CWE-78

A command injection vulnerability was found in the PPTP VPN Clients on the ADM

Critical · published April 20, 2026

CVSS v4.0
9.4
EPSS
2%
Percentile
81.4
In the wild
Unconfirmed
What it is

A command injection vulnerability was found in the PPTP VPN Clients on the ADM. The vulnerability allows an administrative user to break out of the restricted web environment and execute arbitrary code on the underlying operating system. This occurs due to insufficient validation of user-supplied input before it is passed to a system shell. Successful exploitation allows an attacker to achieve Remote Code Execution (RCE) and fully compromise the system.

Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RR42 as well as from ADM 5.0.0 through ADM 5.1.2.REO1.

The record
Technical detail
CVSS v4.0
9.4 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
EPSS
0.02080 · 81.4th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-04-20T06:54Z
EPSS history
Timeline
  • 20 APR 06:54Z
    A command injection vulnerability was found in the PPTP VPN Clients on the ADM
    cvelistv5